PoC Archive PoC Archive

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Ws-Federation

  • CVE-2026-50522 web CRITICAL 9.8 KEV EPSS 77%

    Microsoft SharePoint Server WS-Federation SecurityContextToken Deserialization → Unauthenticated RCE (CVE-2026-50522)

    SharePoint's WS-Federation passive sign-in endpoint (/trust/default.aspx) accepts a wresult parameter containing a WS-Trust RequestSecurityTokenResponse that can carry a SecurityContextToken with an embedded Cookie value. Windows Identity Foundation's…

    Patched 2026-07-27